Rotary negative-developing machine for photographers.



W. R. LAINE.

ROTARY NEGATIVE DEVELOPING MACHINE FOR PHOTOGRAPHERS.

APPLICATION FILED MAR.31,1913,

1,1 1 3,564. Patented Oct. 13, 1914.

f M MM 2/24", 21 21 a w wmm WALT RB LLAND LAINE, oF Los iinennnsl naemia; 'AssIGivon oF I.

T0 ALEXANDER Roma MERRiMAN, or Los ANenLEs, CALIFORNIA;

' l ROTARYIIEGATIVE-DEVELO11NG M CHINE ts: rHo'roeRAnrinns.

Application fiIedMarch 31, 1913. Serial Ito/758,059:

Specification of Letters Pa e.

Patented. o. t.'16, 1914.

To all wlwm it may concern: 1 1

it known hat 1, XVALTER RELLAND LAINE, a citizen of the United States, resid fl, ing in the city of Los Angeles, State'of California, have invented a new and'use'ful Rotary Negative-Developing Machine for Pho- I tographers, of which the following 3 is specification. 1 1 1 t One of the objects of this'inve'ntionis to 'pro- 1 vide a mechanical device that will agitate the; developing solution, wherein the plates are immersed, in an effective manner, so as toproduce an even development of. all parts of the picture; to economize time by dispensing to a great extent with the work of skilled photographers; to provide more sanitary means for developing the plates; and to develop the plates more economically by "reason of saving in thecost of the developing solution,; and in the length of time required for the developing solution todo its work. i i i l The invention pertains to a speciallycon-i structed tank adapted to hold the photographic plates safely in place,w-ithinthe de-j veloping solution, and further, includes an arrangement for withdrawing one rotary": tank from the means for rotating the-sam n; and subs'tituting'a larger or "smaller tank in.

its place so as to adapt a device'for, han-f in size.

dling photographic plates differing greatly Various other objects and advantageswilh hereinafter appear. 1 i 3 The invention consists in the various parts, combinations of parts, and details of construction, all offwhich will be described in connection with the accompanying draw ings, and then definitely pointed out in claims, some ofwhich will cover the invem. tion broadly, and others will be directed, more to details and specific improvements.

Referring to the; accompanying drawings which illustrate the invention, Figure 1 is a side elevation of the complete machine,the'

same being shown using a rather largedeveloping tank. Fig. 2 is an end' elevation looking at the right end of Fig. 1. Fig. 3 1

is a top plan view of Fig. 1. Fig. 1 is a side view of the tank, partly in section and" partly in elevation. Fig. 5 is a perspective view of one form of plate holding device which may be inserted withinthe tank. Fig. 1

6 is a detail view of a portionof the means to removably support the developing tank for rotation. Fig. 7 is a perspective view v ice. Fi g. 81s,an.enlarged,jbroken, transverse section of one of the guiding members of the plate holding device; -Fig. 9 isa cross sectionof the rubber faced :bar upon which :theplates rest. 1 i p 7 Referring in 1 detail to: the drawings, upon 1 a suitable standardl is mounted a shaft 2; N 1

"carrying the'fly wheel 3 towhich is attached v the operating handle-4. Said fly wheel car'- ries a grooved wheello for in'echanieal rotation of Itheshaft 2, when desired, a suit able motor (not j shown'). Said"-shaft"2"is mounted inabearingsleeve 6zformed-on the 1 standard 1. The inner end of' saidshaft 2 has a square portion? for connection with ofuthe preferr ed ofqdel the tank 8 Byinieans of asetscrew" 9, a

collar 10 is fastened to the inner end 'ofshaft 2 to keep said shaft from-sliding out, of j i place; Saidsquared end Nathan 2 enters a socket member-.11 having a square "socket,

saidmember 11 havinga base plate 12which 1 is-soldered or otherwisefastened-to tank 8.

To the opposite'end of tank 8 is fastened a v stud 13 by means of gitsbase plate 14:. The end porti0n i13 of said stud 13 is inserted within a supporting sleeve 15 said sleeve 15 being slidably mounted in a bearing sleeve .16, said sleeve 15 having a knob 17 to pro: vide for manually sliding the same. A set screw 18'servestosecure the sleeve 15 in the fiadjustedtposition. n 1 I I Thejpurpose ofthe arrangement just described is to providefor removing the tank 8,1and insertingin its place similarly. de- :signed largervor smaller tanks aslfdesired. Thetank 8 ismountedwith the end walls thereof extending at an angle of substanjv tially forty-five degrees with respect to. the shafts 2 and 15 in order that the developing solution be more effectively thrown into contact with the pictureplates 21 which are carried by atray or holderor cage 22, shown in. detail, in Figs. 7, 8 and Said holder 22 preferably. consists of a pair of wire end loops or frames 23, a plate supporting member 24 upon which the lower ends of the 1 plates21 may rest, anda pair of corrugated guiding menibersorside pieces 25 uniting I said frames 23, the corrugations of said members 25 being adapted to. form'runways or guides for theplates when the same are inserted. Thesupporting bar 24 is fastened at its ends to the bottoms of the frames 24.

Said bar is provided with a rubber, facing 24"" guard the lowerends, of the glass plates2-1 from injury. A rubber tube or bar '26 may be placed between thetops of the 3 plates 21 and the inner side of the lid 27 to l ltank. 'Between'fthe walls of the lid 27 is guardthe upperfends of said, plates from also preferably provided an air space 31.

'Saidlidis clamped down by a bail32 fastened to thetank by trunnions or ears 83.

Said bail ca rries a screw clamp 34: to clamp the lid 27 tightly in place, so as to permit the rotationofithe tank without leakage of the developing solution therefrom.

5 {1311a Figi '5'is shown a modified form of plate supporting cage 35 made of sheet metalHandhavingend pieces 36 and side 1 "InZthelipreferredform .of the cage, shown in. Y .Figs. .7 and 8, onlyv thev corners of the plates. 'l-engage' the zi zag guides, therefore, the

pieces 37,. *Theside pieces 37 are provided with internally projecting runways or' g'uides 38-to. receive the picture plates 21. In ,usingIeithen form of the cage, the plates areinserted in pairs,'back to back.

side port-ions fof the plates cannot be scratched or marred by the cage. Picture 3 plates maybe developed very quickly by this appliance. .The rho'mb'oid form oftank "gives the developing solution-a back-andforth movement while the tank isbeing rotated, thereby causing the developing solution 'tobathe the faces-of theplates thorroughly and develop the pictures in about half the usual'time. Owing toeach side of ithetankbeing'formed as arhomboid, the open top of the "tank, when brought uppermost, extends in a horizontal plane. The tank may be held in the upright position by forcing the sleeve 15 'firmly against the base portion ofthe stud l3 "and" then screwing down theset screw 18. After. the cage 22 (or 35) has been filled with the plates 21 preparatory to inserting said cage and plates into the rotary tank 8, the entire handling of the plates during washing, placing in the hypo tank and hanging up to dry, may be done collectively while said plates remain in the cage, thus saving much time and also lessening the danger of injury to the plates incident to handling them separately.

"I claim:

1. A tank, a shaft removably secured to one end of said tank and a longitudinally movable shaft at the other end of said tank and axially in line with the first mentioned shaft, said tank being rotatably supported by and between said shafts.

2. A rotary tank, a closure for said tank, shafting whereon said tank is supported,

the end walls of said tank being at an oblique angle to said shafting and the side walls of said tank being substantially parallel to said shafting, and a rhomboidal cage adapted to fit within said tank to removably secure photographic plates in said tank at an oblique angle to said shafting.

3. The combination, with a. rotary tank, of a plate-holding cage for insertion within and removal from said tank, said cage comprising a pair of loops or frames, one at each end of the cage; a plate-supporting member running along the mid-width of the cage from end to end thereof upon which the lower ends of the plates may rest, and a pair of corrugated members uniting said frames, the corrugations of said corrugated members being adapted to form runways or guides for the opposite edges of the plates. In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses at Los Angeles, in the county of Los Angeles and State of California, this, 24th day of March 1913.

WALTER RELLAND LAINE.

k Copies of this patent maybe obtained for five cents eachflay addressing the Commissioner of Patents,

' 1 I Washington, D. G. 

